Home / 40,375.93-55,661.04-28,402.11

Finding the Fourth Proportional to 40,375.93, 55,661.04 and 28,402.11

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Solution

The fourth proportional to 40,375.93, 55,661.04 and 28,402.11 is: 39,154.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,375.93 : 55,661.04 = 28,402.11 : x
  2. Step 2: Convert to fraction form
    40,375.93/55,661.04 = 28,402.11/x
  3. Step 3: Cross multiply
    40,375.93x = 55,661.04 × 28,402.11
  4. Step 4: Simplify right side
    40,375.93x = 1,580,890,980.79
  5. Step 5: Solve for x
    x = 1,580,890,980.79/40,375.93
  6. Step 6: Final answer
    x = 39,154.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.